Can you sue someone after settling with their insurance?
Personal Injury - September 29, 2026 by Horwitz, Horwitz & Associates
Usually not, at least not the same party. Accepting a settlement almost always means signing a release, and that release ends your legal action against whoever it names. What it doesn’t automatically end is a claim against someone else who shares responsibility, or a claim under your own policy.
A settlement can feel final very fast, especially when medical bills and lost wages are already piling up. What decides the question is the document: what you agreed to, and which parties it released. A Chicago personal injury lawyer can read the release and tell you which rights survive it.
What does signing a settlement release actually do?
It closes your claim against the people it names, in exchange for the payment. Once you accept a settlement and sign, you generally can’t go back to that person or company for more on the same claim, including for pain and suffering you’re still living with.
The wording is what matters. Some releases reach only the person named in them. Others also release that person’s insurance company and parties who never appeared in the negotiation.
That your medical expenses later exceeded the settlement doesn’t undo a release you’ve already signed.
Can you still sue another at-fault party after settling with one?
Often yes, and Illinois has a statute that says so. Under the Joint Tortfeasor Contribution Act, a release given in good faith to one liable party “does not discharge any of the other tortfeasors from liability … unless its terms so provide.”
There’s a catch in the same sentence. The release “reduces the recovery on any claim against the others to the extent of any amount stated in the release … or in the amount of the consideration actually paid for it, whichever is greater.” So settling with the at-fault driver for $25,000 takes $25,000 off whatever you could later recover from a company that shared the blame, even though the release never mentioned them.
If a car accident involved another driver and a business with separate responsibility, settling with one doesn’t necessarily close the door on the other. It does change the arithmetic.
Does settling a property damage claim end your injury claim?
Not by itself. Insurers often handle vehicle repairs and the bodily injury claim separately, so you may settle the property side while you’re still treating.
Whether that affects your personal injury claim depends on what the release covers. A document limited to property damage can leave the bodily injury claim open. A broader one may not. If you aren’t sure, the document is the place to look.
What if your injuries turn out to be worse than you thought?
This is the hardest version of the question, and the answer is usually no. Injuries take time to declare themselves, but finding out later that yours are worse doesn’t reopen a claim you’ve settled and released.
A release generally covers the risk that future medical bills and losses turn out larger than anyone expected. That’s part of what the insurer is paying for.
Can you still make a claim on your own insurance?
Sometimes, and this is the route people most often miss. Your own auto policy may provide insurance coverages that pay even after you’ve collected from the at-fault party or their insurance.
Underinsured motorist coverage is the main one. Illinois defines an underinsured vehicle by comparing the at-fault driver’s bodily injury limits against your own underinsured motorist limits, so if their coverage is smaller than yours, the gap may be claimable.
Timing matters more than people expect. Illinois law bars your own insurer from exercising subrogation against the at-fault driver if you gave it written notice in advance of a settlement and it failed to advance a payment equal to that tentative settlement within 30 days. Policies carry their own notice and consent terms too. So if you’re weighing whether to settle your injury claim, telling your own insurer before you agree to settle protects options that a quiet settlement can close. If you’ve already signed without notice, whether a claim survives turns on your policy language.
Not sure what you signed? Talk to Horwitz, Horwitz & Associates
If you’ve already accepted a settlement, the useful question is what the document does, and that one is answerable by reading it. Knowing how long you have to accept a settlement offer helps before you’re in that position.
Horwitz, Horwitz & Associates has represented injured people in Illinois for over 100 years and recovered more than $1 billion for them. Our personal injury attorneys can read a release and work out which parties and claims it covers, and whether another policy is still in play. The firm works on a contingency fee basis, so you pay no attorney’s fees unless compensation is recovered. To contact an experienced personal injury lawyer about what remains after a settlement, call (800) 985-1819 or contact us online for a free consultation.
